Wheel.



C. E. WADE & C. J. LAGERWALII..

WHEEL.

APPLICATION FILED NOV. 2, 1911.

v Patented Apr. 1, 1913.

/Z.' Inventor r f s Attorneys NI l @l WM CHARLES E. WADE, 0F MASONVILLE, AND CHARLES J. LAGERWALL, OF NEW YORK, N. Y.

WHEEL.

Losanna.

Specication of Letters Patent.

PatentedApr. 1, 1913.

Application filed November 2, 1911. Serial No. 658,162.

` outer parts of which are of novel and improved construction, to serve as places of attachment for the resilient means whereby the said arts are spaced.

A furt er object of the invention is to provide a spring wheel which will be dustproof and be {self-lubricating.

A further object of the invention is to improve generally, and to increase the strength of, devices of the `type to which the present invention appertains.l

With the foregoing and other objects .in view, `which will' appear as the description proceeds, the invention Aresides in the combinationA and arrangement ofparts and in the details of construction'hereinaft'ei` de scribed and claimed, it, being understood that changes inthe precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings,-Figure 1 shows the invention in side elevation, parts being broken away; and Fig. 2 isa transverse section upon the line 2 2 of Fig. 1.

The invention includesjconcentric, spaced, inner and outer parts, each having elements adapted to enga e with the resilient means whereby the sai arts are held in spaced relation to each ot er.

The nner para- The inner part of the wheel includes a hub 1 having oppositely extended, threaded ends 2, Ibetween which is located a polygonal, and preferably hexagonal central pol-tion 3. Fitting closely upon the hexagonal portion 3 of the hub 1 is a spider 4, the periphery of which is of hexagonal contour. The spider 4 is held assembled with the portion 3 of the hub 1 by means of a set screw 5, seen most clearly in Fig. 2. The spider 4 is provided, at its v angles, with outstanding, radial lugs 6, the

adjacent faces of which diverge as they extend inwardly, to engage properly between the convolutions of an annularfspring 7, of

helical form, the .spring 7 surrounding the periphery of the spider 4. The spring 7 `is located in a spring chamber 8 which is ordinarily, although not necessarily, `lled with a lubricant.

The outer pam-The Vouter part of the;

wheel includesa ring 9, constituting a rim carrying spokes 10, located between spoke flanges 11 applied to the oppositevside faces lof the rim '9, the spoke flanges 11 being se-A cured to the spokes 10, by means of rivets 12 orother securing elements adapted to a like end. Cover plates 14 are applied to the outer faces of the spoke anges 11,l these cover plates 14 being maintained in place by means of bolts 15, passingthrough the cover plates, through the spoke flanges.v 11. and through the rim 9. r1`he c'over plates 14 fit closely against, and are adapted to slide upon, the side faces of the hexagonal spider 4 which constitutes a portion'of the inner part of the hub. TheV `spoke anges 11 and the ring 9 are dove-tailed, as shown at 16, to receive the transverse heads 17 upon the outer ends of bosses 18, projecting inwardly, in radially disposed relation, toward the axis of the wheel. In the vicinity of the ring 9, the adjacent faces of the bosses 18 converge as shown at 19, but adjacent the free ends of the bosses, their adjacent faces diverge, 'as shown at 20. The

bosses 18 are positioned properly to engagel between the convolutions of the spring 7,

and the particular disposition of the faces` 19 and 2O serves to make -secure the engagement between the bosses and the spring. The bosses 18 are equipped upon their side faces with outstanding projections 21,

adapted to register in openings in the coverl plates 14, thus promoting the security of the attachment between the cover plates and the peripheral portion ofthe wheel. As clearly shown in Fig. 2, the side faces 22 of the bosses converge toward the median plane of the wheel, so that the bosses may not interfere unduly with the resilientaction of the spring 7.

Upon one outer end 2 of the hub 1 is threaded a nut 23, held in place by a set screw 24, the nut 23 havig a ange 25 lying along the outer face of one of the cover plates 14. This ange 25 is equipped with an annular recess adapted to receive a packing ring 26, bearing against the correspond- A hereinbefore referred to.

' ing 35', to receivev a `packing ring 37 which` ing cover plate 14, there being .an opening through the cover plate 14, denoted by'the numeral 27, which opening will serve to permit the lubricant which is within `the spring chamber 8, to come into contact with the packing 2G,l and thus to lubricate the packing, as it moves upon the corresponding cover plate 14. Threadedupon'the opposite lend-2 of the hub l, is a nut- 28, equipped with a flange 29, adapted. to lie along the outer face of the other cover plate 14, the flange 29 having an' annular recess adapted-'tore-l ceive a packing ring 30, bearing against the cover plate 14, the packingl 30 being lubri-. cated, as before, through the openings 27,

which are fashioned in the cover plate 14,V

with which lthe packing 30- coperates.

A dust shield 31 tits against one yof the cover plates 14, the dust shield 31 beingre# bears against the adjacent cover plate.

Mounted upon the nut 28 is' a brake drum 38, having a hub 39 projecting inwardly through the opening 35 in the dust shield 34.

The brakev drum 38 is held assembled with the n`11t-28hyl meansv of a set screw 40, this set screw 4Q serving,- Inoreover, to hold in place, a key 41 which -is inserted between the hub 1 and the nut 28, to hold these elementsassembled. That side of the wheel which is equipped with the brake drum 38 remains permanently closed, all adjustments ordinarily being made from the opposite side of the wheel, .by removing the'dust shield 31.

In practical operation, the spring 7 will serve to hold the inner and outer parts of.

the wheel spaced apart, the bosses 18 and the lugs 6, both of which engage the spring 7, serving to prevent the outer part of the nomma wheel from creeping circumferentially about the wheel.

The wheel herein disclosed will be selflubricating, and the construct-ion is such that the wheel may readily betaken down, to provide for the examination and renewal of broken or worn parts.

Having thus described the invention, what is claimed is:

1. A wheel comprising spaced inner and outer parts; a helical spring disposed in annular form, and located between the said parts; and-,radial wedgeshaped lelements upon said parts, engaged between the convolutions o-f the spring-to eifect a compression of the s ring.

I2. A whee comprising a hubl having a polygonal portion; a spider engaged against rotation upon the polygonal portion of the hub, the spider being equipped with outstanding, wedge-shaped lugs; a ring; we'dgeshaped bosses carried bythe ring; and an annular helical-spring located between. the spider and the ring, the convolutions of the spring being engaged by the narrower ends of the lugs and by the narrower portions of the bosses.

3. A wheel comprising spaced inner and outer'parts overlapped upon each other; a spring located between the parts to maintain the same normally separated, the space be tween said parts being adaptedto receive a lubricant, and there being an opening in one of said parts, permitting the lubricant to enter between the overlappedfaces of said 'parts and a packing extended across the opening.

ln testimony that we claim the foregoing as our own, we have hereto afixed our signatures in the presence of two witnesses.

CHARLES E. l/VADE. CHARLES J. LAGERWALL. Witnesses as to the signature of Charles E. Wade:

FOSTER T. RYDER, FRANK L. DEON. Witnesses as to the signature of Charles J. Lagerwa'll:

CHARLns DEGEN, MIL'roN L. BnRNsTmn. 

